There are no classrooms in Animal School, but there is a forest and a river. The forest is not small. It's big and green. The river is small, but it's long. Look, there are some animals there. Listen, what are they talking?
Mr Cow: Welcome to Animal School What's the matter?
Little Duck: I'm sad. I can't run, and I can't jump. I'm a bad duck.
Mr Cow: I don't think so. Please don't be sad.
Animals: Come on, everyone! Let's swim together!
Mr Cow: Have a try, Little Duck! You can swim very well.
Animals: Wow! Look at the Little Duck! He is so fast!
Little Duck: I'm the first! I'm so happy!
1.What colour is the forest? (
2.Is the river short? (
3.What can the duck do? (
4.At last(最后), is the duck happy? (
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2